I found this medicine container full of sequins in my grandmother's craft-hoard of a basement and immediately wanted to use them for some jewelry-ness. Yup, it's very simple, but it sparkles and really goes with anything. I think it would also make a cute anklet for the summer time (or anytime).
As far as how long this project takes, I'm not certain because I didn't sit down and do it all at once, so it could take a lot less than 4 hours but I am not sure.
You will need a lot of jump rings (I couldn't even tell you how many) and even more sequins. For each jump ring, you need 2 sequins, so you will need double the amount of jump rings of sequins.
You need a chain length that fits your wrist nicely, and a clasp for it also.
Open a jump ring and put two sequins on it.
Attach the jump ring to the second link on the chain. You leave the first alone so you can easily attach a clasp there.
Make sure you close the jump ring really well so the sequins don't fall off, because that happened to me a few times.
Attach another sequin jump ring to the other "side" of the link. I did this so the bracelet would look more full (plus it sparkles more!).
Keep adding sequin jump rings in this fashion until you stop with an empty link left (so you have an empty link on both sides for your clasp).
Now add your clasp. I used a magnetic clasp and attached it directly on the chain links, but you can use whatever clasp and attach it anyway you like.
Ta da! All done!